mercury da-211 seriously proplexing me !!!

Igpoe would know how to get her going, but I’m not sure if he visits the site much anymore.

 

ok so I have replaced freaking everything ( entire ignition system seals and carb is spotless ) except the rings !!! new seal did not make a difference !!!! my last hope is that it is a stuck ring cause once the motor is very warm and everything is expanded cyl 2 will begin to fire and eventually run at 1oo percent . does any one know where I can get rings for this thing or are they even available ??? I am completely out of ideas on why else thi will run like this

 

Hastings used to make ring sets for these till they sold out. I bought mine years ago, you might be able to find NOS or give them a call and see if they still stock them. Looks like standard cast rings, 2" bore, 1/16" width.

 

awesome thanks !! I will do a little searchin around

 

Did you use standard seals for this? Besides the ignition and carb, I haven't been thru my 211. I want to do the seals and seals one day.

 

Yes I used sfk seals I believe they were 32x20x7

 

Did you use the military surplus coils?

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I believe so got em on eBay They have the black ground wire n yellow wire goin to the points

 

Those are extremely hot firing coils which is good to a point. I had one that fired good until it tried to fire under compression then it found a path of lesser resistance outside of the cylinder at the base plate that it was mounted to. I ended up using a high dielectric strength patch over where the coil wire attached to the coil button. The secondary button on those surplus coils is clocked differently from the original Disston coil making it easy for it to seek ground to the base plate.

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agreed about the hot spark I basically found out the same way you did

im still a total loss with this thing I pulled the cylinders off last night and the only thing I found was that the 3rd ring on the non or late firing cylinder was .005 smaller on the opposite side of the end gap I don't think that that's an issue but I am stretching here and trying to find replacement rings

another long shot her is it possible for a points condenser to start discharging the stored power at after it gets hot ??

 

I think these are the rings you want. Call up Hastings, give them your specs. They list 2" individual rings.

https://apaengineering.net/HastingsCatalog/Home/individualrings/2.000,6788

 

I will give them a call thanks. I missed that one when I was looking through there catalog

 

Ok now the second saw o got running today and it’s doing the identical thing. Lol . It will only run on 2 cylinders with the fan and shroud off . If the fan n shroud are on I can not get it to stay running on 2 cylinders. It try’s but it just won’t “ catch” I’m gonna try to post 2 vids the first is with the fan n shroud on. N u can see n here the 2nd cylinder try to fire with puffs of smoke. The second vid is with no shroud or fan. And after I got it nice n got the second cyl eventually caught n ran fine. ????? I’m starting to get that goin crazy laugh !!!

 

Ok I can’t upload the vids I keep getting a error that they are to long. One is 2 min n the other is 1 min

 

any of you da 2-11 guys know what your carb settings are the manual say to start with 1 1/2 turns out on the high speed and 1/2 turn out on the low speed my low speed is about 3/4 out and my high speed was 3 3/4 out when I got the saw 1 1/2 turns out sound way to lean way to lean. unless both my saws have dirt in the carbs because they just begin to die about 1 1/2 turns out